They'll join Black and Angelina Jolie in the film, which is also expected to include the voices of returning cast members David Cross, Seth Rogen, Jackie Chan, and others.

"Kung Fu Panda 2" director Jennifer Yuh Nelson is also returning. The film is produced by Melissa Cobb and co-produced by Jeffrey Hermann, Jonathan Aibel and Glenn Berger. Guillermo del Toro ("Pacific Rim") continues on as executive producer. The film is also the first planned co-production with China-based Oriental DreamWorks.

The first two films grossed a combined $1.2 billion worldwide, and DreamWorks Animation has hinted that they're may be more sequels on the way.